Vacuum-cleaner.



H. T. RODDEN.

VACUUM CLEANER. APPLIOATION FILED JULY 21, 1911.

1,074;,74;4;, Patented Oct. 7, 1913.

- ZLMMAA na @fiufmq an STATES rnrnn'r orrron.

HERBERT T. RODDEN, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-THIRD TO PAUL M.

. l 'SCI-IRAU'I, OF GHICAGO, ILLINOIS.

VACUUM-CLEANER.

Specification of Letters Patent.

Application filed July 21, 1911. Serial No. 639,749.

To all whom it may concern i Be it known that I, Hnnnnn'r T. Ronnnn, a citizen of the United States, and resident of the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Vacuum- Cleaners, of which the following is a specification.

- Myinventionrelates to improvements in vacuum cleaners and has for its object the production of a device of this character of ,such a construction as to be capable of sweeping a floor with a minimum of physi- "cal exert-ion.

A further object of my invention is to provide a vacuunrcleaner, which shall be simple of construction, and etiicient in operation.

Other objects will appear hereinafter.

\Vith these objects in view my invention consists in the combination and arrangements of parts hereinafter described and claimed.

My invention will be best understood by reference to the accompanying drawing forming a part of this specification, and in which the figure is a side elevation partly in section, of a device embodying my invention.

The preferred form of construction as illustrated in the accompanying drawings comprises a pump cast integral with a body block 2 and depending downwardly therefrom as clearly illustrated. Secured to the bottom of the pump 1, and extending downwardly and forwardly therefrom is a conduit 8 which terminates at its forward end in the conventional nozzle 4. Extending rcarwardly from said nozzle at each end thereof is a. bearing arm 5, and at the-rearward extremities thereof is journaled a transversely extending shaft (5 which carries fast at each extremity a traction wheel 7. Extending laterally from each end of the nozzle 45 is a small pin 8 carrying a small truck or roller 9. the latter serving to maintain the nozzle at a suitable distance from the floor. One of the traction Wheels 7 is connected by pitmen' 11 to the pump, the pitmen being connected at one end to apin 10 on the wheel and at the other end to the piston rod as at 13. The piston 14 operating in the cylinder 1 is thus adapted to move a distance corresponding with the diameter of thepath of movement of a crank pin. 10. In order to provide for the free ingress and egress of atmosphere to the space in the cylinder 1 above the piston 14, an opening is provided which is covered by means of an adjustable swiveled lid 16. By this provision no resistance to the movement of the piston 14 excepting the friction thereof is brought to bear. Lids 16 serve to close openings 15, when the dovide is not in use, to exclude dust and-dirt-.

The air and dust from the pump 1 is conducted through a pipe 19 to a dustreceptacle '20,.t he latter being preferably formed of a suitable fabric. The upper end of the pipe '19 is goose-neck in form soas to discharge downwardly into the receptacle 20, there being a hook provided adjacent the end of said pipe for the reception of a bail 21 by means of which the receptacle 20 is supported. The air and dust which. is discharged into the receptacle 20 flows downwardly as indicated by arrows in the figure, the dust being deposited in the bag or receptacle and the air passing through the fine openings in the fabric thereof and thence through the restricted Patented Oct. '7, 1913.

annular passage formed between the cylinder 22 and the depending bell shaped member. 23 to atmosphere through the automatic flap valves 24. It should be noted that owing to the shape of the upper portion of the member 23, an expansion chamber is formed in the passage just before reaching the valves 24.

The cylinders 22' and 23 are preferably formed integral with each other as clearly shown in the figure, and in order to secure these cylinders to the body 2 for inclosing the bags 20, upwardly extending studs 25 are provided on said body to engageperforated lugs 26 projecting radially from the cylinder 22, there being thumb nuts 27 provided on said studs. removed, the bag 20 is readily detached from the hook provided on the end of the pipe 19. The operation of the device is obvious without further description.

\Vhile I have illustrated and described the preferred form of construction for carrying my invention into effect, this is capable of variation and modification without departing from the spirit of the invention. I, herefore, do not wish to be limited to the precise dcl ails of construction set forth, but

After the cylinders are I desire to avail mysle'li of such variations and modificat-ions as come within the scope of the appended claims.

Having described my invention what I claim as new and desireto secure by Letters Patent is: 1. A dust collector comprising an outer casing and a depending bell shaped member Within said casing, the lower portion of the Walls of said ball shaped member and the adjacent walls of said casing together formmg a restricted passage-way, the Walls of said bell shaped member and said casing being flared apart at their upper ends to form an expansion chamber, there being restricted exhapst ports in said casing communicating with said expansion chamber, substantially as described. I 1

2. A dust collector comprising a cylindrical outer casing and a dependingbellshaped member therein, the lower portion of said bell shaped member forming ..with the adjacent Walls-of sa-id icasing a'restricted passage-way and the outer portion-of said bell shaped member being reduced inidiameter Walls of said'casing a restricted passageway, the upper portion of said bell shaped member being'reduced in diameter to form with said casing an expansion chamber at the upper end of said passage-way, there being restricted exhaust ports in said casing communicating with said expansion chamher and a dust separator arranged within tsaid bell shaped member, substantially as described:

In testimony whereof I have signed my name-to this specification in the presence of two subscribing witnesses.

\Vitnesses: I

HELEN F. LILLIS, JOSHUA R. H. Po'rrs.

HERBERT 'r. acumen. 

